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Geological Survey DEPARTMENT OF THE INTERIOR BULLETIN OF THE UNITED STATES GEOLOGICAL SURVEY No. 13 A CRYSTALLOGRAPHIC STUDY OF THE THINOLITE OF LAKE LAHONTAN. WASHINGTON GOVERNMENT PRINTING OFFICE 1884 A.3DVBRTISBMBNT. (Bulletin No. 12.) The publications of the United States Geological Survey are issued in accordance with the statute approved March 3,1879, which declares that " The publications of the Geological Survey shall consist of the annual report of operations, geo-. logical and economic maps illustrating the resources and classifications of the lands, and reports upon general and economic geology and paleontology. The annual report of operations of the Geological Survey shall accompany the annual report of the Secretary o the Interior. AU special memoirs and reports of said Survey shall be issued in uniform quarto series if deemed necessary by the Director, but otherwise in ordinary octavos. Three thousand copies of each shall be p'ablished for scientific exchanges and for sale at the price of publication; and all literary and cartographic materials received in exchange shall be the property of the United States and form a part of the library of the organ­ ization. And the money resulting from the sale of such publications shall be covered into the Treas­ ury of the United States." . On July 7, 1882, the following joint resolution, referring to all Government publications, was passed by Congress: 1 ' That whenever any document or report shall be ordered printed by Congress, there shall be printed, in addition to the number in each case stated; the " usual number " (1,900) of copies for binding and distribution among those entitled to receive them." Under these general laws it will be seen that none of the Survey publications are furnished to it for gratuitous distribution. The 3,000 copies of the Annual^Beport are distributed through the document- rooms of Congress. The 1,900 copies of each of the publications are distributed to the officers, of the legislative and executive departments, and to stated depositories throughout the United States. Except, therefore, in those cases where an extra number of any publication is supplied to this office by special resolution of Congress, as has been done in the case of the second, third, fourth and fifth Annual Beports, or where a number has been ordered for its use by the Secretary of the Interior, as in the case of "Williams's Mineral Eesources, the Survey has no copies of any of its publications for gratuitous dis­ tribution. ANNUAL REPORTS. Of the Annual Keports there have been already published: X First Annual Eeport to the Hon. Carl Schnrz, by Clarence King. 1880. 8°. 79 pp. 1 map. A preliminary report describing plan of organization and publications. H. Eeport of the Director of the United States Geological Survey for 1880-'81, by J. W. Powell. 1882. 8°. Iv, 588 pp. 61 pi., 1 map. m. Third Annual Eeport of the United States Geological Survey, 1881-'82, by J. W. Powell. 1883. 8°. xviii, 564 pp. 67 pi. and maps. , l IV. Fourth Annual Eeport of the United States Geological Survey, 1882^83, by J. W. Powell. 1884. 8°. xii, 473 pp. 85 pi. and maps. ) The Fifth Annual Keport is in press. '. MONOGRAPHS. So far as already determined upon, the list of the Monographs is as follows: I. The Precious Metals, by Clarence King. In preparation. n. Tertiary History of the Grand Canon District, with atlas, by Capt. C. E. Dutton. Published, m. Geology of the Comstock Lode and Washoe District, with atlas, by George F. Beoker. Pub­ lished. TV. Comstock Mining and'Miners, by Eliot Lord. Published. V. Copper-bearing Books of Lake Superior, by Prof. E. D. Irving. Published. VI. Older Mesozoic Flora of Virginia, by Prof. William M. Fontaine. Published. VII. Silver-lead Deposits of Eureka, Nevada, by Joseph S. Curtis. Published. VLtr. Paleontology of the Eureka District, Nevada, by Charles D. "Walcott. In press. IX. Brachiopoda and Lamellibranchiata of the Earitan Clays and Green sand Marls of New Jersey, by E. P. Whitfield. In press. ADVERTISEMENT. Geology and Mining Industry of Leadville, with atlas, by S. F. Bmmons. In preparation. Geology of the Eureka Mining District, Nevada, with atlas, by Arnold Hague. In preparation. Lake Bonneville, by G. K. Gilbert. In preparation. Dinocerata: A Monograph on an Extinct Order of Ungulates, by Prof. 0. C. Marsh. In preparation. Sauropoda, by Prof. 0. C. Marsh. In preparation. Stegosauria, by Prof. 0. C. Marsh. In preparation. Of these Monographs, Nos. II, III, IV, V, VI, and VII are now published, viz: II. Tertiary History of the Grand Canon District, with atlas, by C. E. Dutton, Capt. IT. S. A. 1882. 4°. 264 pp. 42 pi. and atlas of 26 double sheets folio. Price, $10.12. HI. Geology of the Comstock Lode and Washoe District, with atlas, by G. F. Beoker. 1882. 4°. xv, 422 pp. 7 pi. and atlas of 21 sheets folio. Price, $11. IV. Comstock Mining and Miners, by Eliot Lord. 1883. 4°. xiv, 451pp. 3 pi. Price, $1.50. V. Copper-bearing Rocks of Lake Superior, by Prof. R. D. Irving. 1883. 4°. xvi, 464 pp. 29 pi. Price, $1.85. VI. Contributions to the Knowledge of the Older Mesozoio Flora of Virginia, by William M. Fontaine. 1883. 4°. xix, 128 pp. 54 11., 54 pi. Price, $1.05. VLI. Silver-lead Deposits of Eureka, Nevada, by Joseph S. Curtis. 1884. 4°. xii, 200 pp. 15 pi. Price, $1.20. Nos. VILT and IX are in press and will soon appear. The others, to which numbers are not assigned, are in preparation. BULLETINS. The Bulletins of the Survey will contain such papers relating to the general purpose of its work as do not properly come under the heads of ANNUAL REPORTS or MONOGRAPHS. Each of these Bulletins will contain but one paper, and be complete in itself. They will, however, be numbered in a continuous series, and will in time be united into volumes of convenient size. To facilitate this each Bulletin will have two paginations, one proper to itself and another which be­ longs to it as part of the volume. Of this series of Bulletins Nos. 1,2,3,4,5,6,7,8,9,10,11, and 12 are already published, viz: 1. Ou Hypersthene-Andesite and on Triclinic Pyroxene in Augitic Rocks, by Whitman Cross, with & Geological Sketch of Buffalo Peaks, Colorado, by S. F. Emmons. 1883. 8°. 42 pp. 2 pi. Price, 10 cents. 2. Gold and Silver Conversion Tables, giving, the Coining Value of Troy Ounces of Fine Metal, &c.,by Albert Williams, jr. 1883. 8°. ii, 8 pp. Price, 5 cents. 3. On the Fossil Faunas of the Upper Devonian along the Meridian of 76° 30', from Tompkins County, New York, to Bradford County, Pennsylvania, by Henry S.Williams. 1884. 8°. 36pp. Price, 5 cents. 4. On Mesozoic Fossils, by Charles A. White. 1884. 8°. 36 pp. 9 pi. Price, 5 cents. 5. A Dictionary of Altitudes in the United States, compiled by Henry Gannett. 1884. 8°. 325pp. Price, 20 cents. 6. Elevations in the Dominion of Canada, by J. W. Spencer. 1884. 8°. 43 pp. Price, 5 cents. 7. Mapoteca Geologica Americana. A Catalogue of Geological Maps of America (North and South), 17524881, by JulesMarcou and John BelknapMarcou. 1884. 8°. 184pp. Price, 10 cents. 8. On Secondary Enlargements of Mineral Fragments in Certain Rocks, by R. D. Irving and C. R. Vanhise. 1884. 8°. 56 pp. Price 10 cents. 9. A Report of the Work done in the Washington Laboratory during the fiscal year 1883-'84. F. W. Clarke, chief chemist; T. M. Chatard, assistant. 1884. 8°. 40pp. Price 5 cents. 10. On the Cambrian Faunas of North America. Preliminary studies by Charles Doolittle Walcott. 1884. 8° 74pp. Price 5 cents. 11. On the Quaternary and Recent Mollusca of the Great Basin; with Descriptions of New Forms, by R. Ellsworth.Call; introduced by a sketch of the Quaternary Lakes of the Great Basin, by G. K. Gilbert. 1884. 8°. 66 pp. Price, 5 cents. 12. A Crystallographic Study of the Thinolite of Lake Lahontan, by Edward S. Dana. 1884. 8°. 34 pp. Price, 5 cents. STATISTICAL PAPERS. A fourth series of publications, having special reference to the mineral resources of the United States, is contemplated. Of that series the first has been published, viz: Mineral Resources of the United States, by Albert Williams, jr. 1883. 8°. xvii, 813 pp. Price, 50 cents. Correspondence relating to the publications of the Survey, and all remittances, which must be by postal note or money-order, should be addressed to the DIRECTOR OP THE UNITED STATES GEOLOGICAL SURVEY, Washington, D. 0. WASHINGTON, D. C., September 30,1884. DEPARTMENT OP THE INTERIOB BULLETIN OF THE UNITED STATES GEOLOGICAL SURVEY No. 13 WASHINGTON GOVERNMENT PRINTING OFFICE 1884 U. S. GEOLOGICAL SURVEY BULLETIN NO. 12 PL. I THINOLITE. UNITED STATES GEOLOGICAL SURVEY J. W. POWELL DIRECTOR A. CRYSTALLOGRAPHY STUDY OF THE THINOLITE OF LAKE LAHONTAN BY EDWARD S. DANA WASHINGTON GOVERNMENT PRINTING OFFICE 1884 LETTER OF TRANSMITTAL. 'UNITED STATES GEOLOGICAL SURVEY, DIVISION OF THE GREAT BASIN, Washington, Z>. (7., September 16, 1884. SIR: I have the honor to transmit herewith, for publication, a paper on Thinolite, by Prof. Edward S. Dana, of New Haven. The calcareous pseudomorph to which Mr, Clarence King gave the name "thinolite" has been referred by him and others to the mineral gaylussite, and the history of its conversion to calcite was believed to afford the key to the history of the oscillations of Lake Lahontan. Mr. Eussell's later and fuller investigations demonstrated the physical im­ possibility of the lake-history deduced by Eing, and the question of the' origin of the thinolite was thus reopened.
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